PHYS 211 Final Exam CAPA Hw | Questions with 100% Correct Answers | Verified | Latest Update 2024

The drawing below shows a hydraulic chamber in which a spring (spring constant = 1580 N/m) is attached to the input piston (A1 = 15.0 cm2), and a rock of mass 37.8 kg rests on the output plunger (A2 = 62.8 cm2). The piston and plunger are nearly at the same height, and each has a negligible mass. By how much is the spring compressed from its unstrained position? - convert A1 and A2 to meters^2 (move decimal 4 left) kx/A1 = mg/A2 solve for x A recreational (open) hot air balloon (i.e., Pinside is approximately Poutside) has a volume of 2283 m3 when fully inflated. The total weight of the balloon, basket, ballast and pilot is 1832.6 N (412 lbs). By how much must the density of the air in the balloon be smaller than that of the surrounding atmosphere in order to keep the balloon floating level near the ground? - m = Weight/g D=m/v solve for D The side view of a pipe is shown. The pipe diameter increases and then remains constant. Pi is the pressure, and vi is the speed of a non-viscous incompressible fluid, at locations i = 1,2,3.